MORPHOLOGY OF EXTENDED-CHAIN SINGLE-CRYSTALS OF VINYLIDENE FLUORIDE AND TRIFLUOROETHYLENE COPOLYMERS

被引：18
|
作者：
HIKOSAKA, M [1 ]
SAKURAI, K [1 ]
OHIGASHI, H [1 ]
KOIZUMI, T [1 ]
机构：
[1] KUREHA CHEM IND CO LTD,NISHIKI RES LABS,IWAKI 974,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 5A期
关键词：
MORPHOLOGY; ECCS; ECSCS; P(VDF/TRFE); POLARIZED OPTICAL MICROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; CRYSTALLIZATION; HEXAGONAL PHASE; CHAIN SLIDING DIFFUSION THEORY; POLYMER;
D O I：
10.1143/JJAP.32.2029
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The morphology of extended chain crystals (ECCs) or extended chain single crystals (ECSCs) of vinylidene fluoride and trifluoroethylene copolymers, P(VDF/TrFE), with VDF molar content x less than or similar 0.82 was observed by polarized optical microscopy and transmission electron microscopy. It was found that a thick isolated ECSC and thick stacked ECCs, about 0.3-0.8 mum thick, were formed when P(VDF/TrFE) was crystallized from the melt into the mobile hexagonal phase at atmospheric pressure or under high pressure, 80 MPa or 170 MPa. The isolated ECS Cs were found for the first time on the copolymer. This confirmed the prediction of chain sliding diffusion theory proposed by Hikosaka that ECSCs or ECCs will be formed when polymers are crystallized from the melt into the mobile hexagonal phase.
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页码：2029 / 2036
页数：8
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